Lubricator.



LUBRIGATOR.

APPLICATION FILED APR.13. 1904. no MODEL.

v [ii/@1251 1 5350 II I 1 Q STATES NTE Patented December 6, 1904.

ATENT Oriana.

LUHWCATORM SPJEGIFIGATION forming part of Letters Patent No. 776,900, dated December 6, 1904.

Application filed April 13, 1904. Serial No. 202,937 (No model.)

To all whom, it may concern.-

Be it known that I, SAMUEL B. Fonsn, a citizen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Lubricators, of which the following is a specification, reference being bad therein to the accompanying drawing.

This invention relates to certain new and useful improvements in lubricating devices, and relates more particularly to a lubricator adapted for use in connection with vertical rods or shafts, the invention being particularly designed for employment on elevatorrods.

The object of the invention is to provide a device of this character with a reservoir for containing a lubricant whether of a fluid or semisolid nature with a stufling box and packing above and below the reservoir to insure a perfect lubrication of the rod or shaft.

Briefly described, the invention comprises a stuffing-box provided with a threaded nipple adapted to be engaged in the end of the cylinder into which the rod or shaft extends. This stuffing-box carries one half of the bulb forming the shell or casing. of the lubricantreccptacle, the other half of said bulb orshell having a threaded connection with the listmentioned one-half and being carried by the upper stufiing-box.

All of the above construction will be hereinafter more fully described, and specifically pointed out in the claims, and in describing the invention in detail reference is had to the accompanying drawing, forming a part of this her 4 has a shoulder 6 to rest against the cylinder-head 2, and in the chamber 7 of the member L is placed a suitable packing 8, to be engaged and compressed by the gland 9. An upper stufling-box is also provided and comprises a member 10, through which the rod or shaft 5 passes and in the chamber 11 of which'is placed a packing 1-2, to be engaged by the gland 14:. A lubricant receptacle or chamber 17 is provided, the shell or casing of which is somewhat bulb-like in form and comprises two sections or halves 15 16, the latter having an annular interiorly-threaded flange 18 to engage with the exterior threads on the section or half 15. The section or half of this easing or shell is carried by the outside member 19 of the lower stuffing-box, which is threaded onto the member 4 of the stuflingbox, the interior shoulder 20 thereof engaging the gland 9. The sectien or half 16 of the shell or casing is carried by the member 10 of the upper stalling-box, onto which section of the stuiiing-box is threaded an outer member 21, which engages the gland 14:. It will be observed that by this construction the upper half of the device may be readily unscrewed from the lower half and the lubri cant, either of a fluid or semisolid nature, may be placed in the chamber 17 and the upper half of the device then placed, in position.

It will be observed that the lubricant may be placed in. the chamber without diiiiculty during the operation of the rod or shaft 5 and that the packing 8 and 12, which may be formed of waste or any other desired packing, being on each side of the lubricant cha1nber, insures a perfect lubrication of the rod or shaft (llllll'lg its working.

It will be noted that various changes may be made in the details of construction without departing from the general spirit of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a lubricating device, a lubricant-receptacle comprising a casing embodying two members dctachablyconnected together, and a stuflingbox above and another below and both without the lubricant-rcceptacle, substantially as described.

stuffing-box containing a removable gland and the lower end of the lubricant-receptacle covering and inclosing the lower stuffing-box, substantially as described. 5

In testimony whereof I afliX my signature in the presence of two Witnesses.

SAMUEL B. FORSE.

WVitnesses:

A. M. WILsoN, E. E. POTTER. 

